How Do You Write an Equation of a Line in Point-Slope Form If You Have Two Points?

How Do You Write an Equation of a Line in Point-Slope Form If You Have Two Points?

Note:

Trying to write an equation in point-slope form? Have two points but no slope? You'll need to use those points to find a slope first. Watch this tutorial and see what needs to be done to write an equation in point-slope form!

Keywords:

  • problem
  • line
  • formula
  • equation
  • point-slope
  • point-slope form
  • point
  • slope
  • two points
  • find slope
  • linear equation

Background Tutorials

  • Use similar triangles to explain why the slope m is the same between any two distinct points on a non-vertical line in the coordinate plane; derive the equation y = mx for a line through the origin and the equation y = mx + b for a line intercepting the vertical axis at b.

      • What's the Formula for Slope?What's the Formula for Slope?

      What's the Formula for Slope?

      When you're dealing with linear equations, you may be asked to find the slope of a line. That's when knowing the slope formula really comes in handy! Learn the formula to find the slope of a line by watching this tutorial.

      • What Does the Slope of a Line Mean?What Does the Slope of a Line Mean?

      What Does the Slope of a Line Mean?

      You can't learn about linear equations without learning about slope. The slope of a line is the steepness of the line. There are many ways to think about slope. Slope is the rise over the run, the change in 'y' over the change in 'x', or the gradient of a line. Check out this tutorial to learn about slope!

Further Exploration

  • Construct a function to model a linear relationship between two quantities. Determine the rate of change and initial value of the function from a description of a relationship or from two (x, y) values, including reading these from a table or from a graph. Interpret the rate of change and initial value of a linear function in terms of the situation it models, and in terms of its graph or a table of values.

  • Create equations in two or more variables to represent relationships between quantities; graph equations on coordinate axes with labels and scales.